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ALPINE BARTSIA Bartsia alpina (Scrophulariaceae) Height to 25cm. Upright, downy and unbranched perennial; semi-parasitic on the roots of other plants. Grows in damp grassland on upland, limestone soils. FLOWERS are 15-20mm long, the corolla purple and 2-lipped (upper longer than lower); in spikes (Jul-Aug). FRUITS are capsules. LEAVES are oval, unstalked and untoothed, the upper ones tinged purple. STATUS-Rare, restricted to a few sites in N England and the Scottish Highlands.